反应详情

温度

0 °C

To a solution of methyl 5-bromo-2,2-dimethyl-2,3-dihydrobenzofuran-7-carboxylate (668) (466 mg, 1.63 mmol) in tetrahydrofuran (16 mL) at 0° C. was added LAH (1 mL, 1.96 mmol). The reaction was stirred at 0° C. for 1 hour and quenched with 0.2 mL of water, 0.2 mL of 15% NaOH and 0.6 mL of water. The reaction was warmed to room temperature and diluted with diethyl ether. Magnesium sulfate was added and the solution was filtered, washed with diethyl ether, and the solvent removed in vacuo to provide (5-bromo-2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)methanol (669).

1. customquenched with 0.2 mL of water, 0.2 mL of 15% NaOH and 0.6 mL of water
2. temperatureThe reaction was warmed to room temperature
3. additiondiluted with diethyl ether
4. additionMagnesium sulfate was added
5. filtrationthe solution was filtered
6. washwashed with diethyl ether
7. customthe solvent removed in vacuo